daniels



2 Sheets-Sheet 1.

-W. DANIELS. Paint M111.

No. 229,973. Patented July13, 1880.

WITNESSES INVENTOR ATTORNEYS N-FETERS, PNOTQ-LITHQGRAPHER. WASHINGTON,I) C.

I UNITED STATES PATENT OFFICE.

WILLIAM DANIELS, OF BROOKLYN, YORK.

PAINT-MILL- SPECIFICATION forming part of Letters Patent No. 229,973,dated July 13, 1880.,

Application filed September 17, 1879.

To all whom it may concern:

Be it known thatI, WILLIAM DANIELS, of Brooklyn, in the county of Kings,and in the State of New York, have invented certain new and usefulImprovements in Paint-Mills; and I do hereby declare that the followingis afull, clear, and exact description thereof, reference being had tothe accompanying drawings, and

to the letters of reference marked thereon,

duced near the skirt or edge of the grindingsurface.

My invention consists in the particular construction of the deviceswhereby the temperature of the grinders is regulated, as will behereinafter more fully set forth, and pointed out in the claim.

In the annexed drawings, Figure 1 is a side elevation of my invention.Figs. 2, 3, and 4 are detail views of parts thereof.

A represents-a castplate, made rigidly fast to the hollow spindle B, thehole in the spindle extending down to the edge or back of the stone oriron grinder. This cast plate is provided with grooves or pipes to a,leading from the hole in the spindle underneath the runner-stone G tothe hollow space at the edge of the stone or iron grinder, as shown inFig. 2.

The stone 0 is made fast to the plate A by shrinking on a wrought-ironband, b. The

\ hollow space is'formed by shrinking on two square rings, d (I, onering on the stone near the grinding-surface, and the other on thecasting below, and the two rings covered with a wide band, D, of somelight metal, such as galvanized iron, brass, or copper, thus forming apassage at the edge of the stone for cold water, air, &c. The water orair is discharged from this space through similar grooves or pipes a a,as shown in Fig. 4, and out at 0, under the mill.

The space on the top or stationary stone is formed in the same manner,the water being introduced by means of a pipe, f, in the top of thecasting, discharging at opposite side through a pipe, h, and it may beconveyed to the runner or pass through all of the top or stationarystones,as desired. This same space may be formed on a stone or metalgrinder without the cast plate by making the stone or metal grinderrigidly fast to the hollow spindle and conveying the water to the saidspace in pipes, same as described above.

All paints, nearly, are ground more than once, and the first grinding isusually done faster than the second or finishing. For this reason I haveconstructed a mill with three or more mills on one frame, as shown inFig. 1, and marked, respectively, No. 1, No. 2, and No.3. One mill iselevated above two or more, and one discharging'into two or more. Thesemills are all connected together by spur-gear wheels F F, and one ofthem connected by bevel-gear wheels I I to a line-shaft,G, to which thepower is applied, thus driving all the mills with one belt.

In a former patent granted to me June 4, 1878, No. 204,542, I show achamber formed in the millstone extending from the eye to a certaindistance from the edge or skirt. This is not applicable to paint-mills,as -in such mills the grinding is done mainly at or near the skirt oredge of the grinder, and hence a chamber, as in my former patent, woulddo no good.

In my present case the chamber for the passage and circulation of coldwater, air, &c.,is formed at the edge or skirt of the grinder to keepthe surface cool where the grindingis done.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

In a paint-mill, theoombination of the hol= low spindle B, plate A,having the radial passages a a, as described, stone G, with thesurrounding chamber formed of the band 1), rings d cl, and band D, andan outlet, all substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this25th day of August, 1879.

WM. DANIELS. Witnesses: IRA A. KIMBALL, J. W. DANIELS.

